Let's make history!
It's a rather complex way of doing things, but this application generates a world and then proceeds to populate it. This population, a mix of the semi-normal (humans, elves, and Terran, which I made up) and the demonic (Furies, dragons, and titans) then weaves a story: waging war, expanding, dying, farming... in short, this is a civilization sim.
There are a couple. The framework code lives in test/test.rb, and it is run
with the following command:
$ ruby test/test.rb [testname]
Where testname is either the name of a test (test/tests/[testname].rb) or
just all (the default)